You just need to add a few lines of custom CSS codes from the dashboard to hide the Navbar.
The CSS codes
To add the CSS code
To add the CSS codes, let's copy the above codes first, then from your blog dashboard, click on Template->Customize->Advance->Add CSS, paste the codes into the blank window, click on "Apply to Blog" to save the change.
If you'd like to see the screenshots for above procedure, please check me previous post:
How / Where to Add Custom CSS to Blogspot on Blogger.com
Once the codes been saved, go back to your blog and refresh the page to take a look, has the "Next Blog >>" Navigation Bar disappeared ?
How do you like the default Navigation Bar? What's your experience of removing the Navbar? Share your experience and insights in the comments box below.